-99.65% is the change from 851 to 3
Calculation steps:
[( 3 - 851 ) ÷ 851] x 100 = -99.65%
Formula
Percentage change = [(3 - 851) / 851] x 100
Subtract the new number by the original number
3 - 851 = -848
-848 ÷ 851 = -0.9964747356051704
-0.9964747356051704 x 100 = -99.65%